On the triviality of certain non-Riemannian models of gravitation


We prove in the Tucker-Wang approach to non-Riemannian Gravity that a general homogeneous Lagrangian density in the general connection with order of homogeneity of at least two gives no contribution to the generalised Einstein equations. Using this result other important cases are also considered. 04.20.-q, 04.40.-b, 04.50.+h, 04.62.+v scipioni@physics.ubc.ca


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